Datasheet > TPS65311-Q1

TPS65311-Q1

更新时间： 2023-09-03 20:40:19

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
62页	1078K
描述
适用于汽车安全应用的汽车类 4V 至 40V、5 稳压输出电源管理 IC

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TPS65311-Q1

SLVSCA6C –OCTOBER 2013–REVISED OCTOBER 2017

TPS65311-Q1 High-Voltage Power-Management IC for Automotive Applications

1 Features

2 Applications

•

Qualified for Automotive Applications

•

Multi-Rail DC Power Distribution Systems

Safety-Relevant Automotive Applications

•

AEC-Q100 Test Guidance With the Following

Results:

–

Advanced Driver Assistance Systems

–

Device Temperature Grade 1: –40°C to

+125°C Ambient Operating Temperature

3 Description

The TPS65311-Q1 device is a power-management IC

(PMIC), meeting the requirements of digital-signal-

processor (DSP) controlled-automotive systems (for

example, advanced driver-assistance systems). With

the integration of commonly used supply rails and

features, the TPS65311-Q1 device significantly

reduces board space and system costs.

–

Device HBM ESD Classification Level H1B

Device CDM ESD Classification Level C4B

•

Input Voltage Range: 4 V to 40 V, Transients up

to 60 V; 80 V When Using External PMOS-FET

Single-Output Synchronous-Buck Controller

–

Peak Gate-Drive Current 0.6 A

The device is capable of providing stable output

voltages to the application, including a typical 5-V

CAN-supply, from a varying input power supply (such

as an automotive car battery) from 4 V to 40 V. The

device includes one synchronous buck controller as a

pre-regulator that offers flexible output power to the

application. For post-regulation, the device includes

two synchronous buck and one asynchronous boost

converter, working at a switching frequency of 2.45

MHz to allow for a smaller inductor which requires

less board space. The two buck converters also offer

internal loop compensation which eliminates the need

for external compensation components. Furthermore,

the device includes a low-noise linear regulator.

490-kHz Fixed Switching Frequency

Pseudo Random Frequency-Hopping Spread

Spectrum or Triangular Mode

•

Dual-Synchronous Buck Converter

–

Designed for Output Currents up to 2 A

Out of Phase Switching

Switching Frequency: 2.45 MHz

•

Adjustable 350-mA Linear Regulator

Adjustable Asynchronous-Boost Converter

–

1-A Integrated Switch

Switching Frequency: 2.45 MHz

•

Soft-Start Feature for All Regulator Outputs

Independent Voltage Monitoring

Device Information⁽¹⁾

DEVICE NAME

PACKAGE

VQFN (56)

VQFNP (56)

BODY SIZE

Undervoltage (UV) Detection and Overvoltage

(OV) Protection

8.00 mm × 8.00 mm

TPS65311-Q1

•

Short Circuit, Overcurrent, and Thermal Protection

on all supply output rails

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Serial-Peripheral Interface (SPI) for Control and

Diagnostic

Simplified Schematic

•

Integrated Window Watchdog (WD)

Reference Voltage Output

V_BAT

High-Side (HS) Driver for Use with External

PMOS-FET for driving an LED

V_Buck1

V_Boost

•

Input for External Temperature Sensor for

Shutdown at T_A< –40°C

TPS65311-Q1

V_Buck1

Thermally Enhanced Packages With Exposed

Thermal Pad

V_Buck3

V_Buck2

–

56-Pin VQFN (RVJ) or 56-Pin VQFNP (RWE)

V_LDO

Logic I/O

(SPI, Watchdog, Reset)

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...62

中文翻译

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TPS65311QRVJRQ1	TI	获取价格	适用于汽车安全应用的汽车类 4V 至 40V、5 稳压输出电源管理 IC \| RVJ \|
TPS65313-Q1	TI	获取价格	适用于汽车应用的高压 PMIC
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TPS65321A-Q1	TI	获取价格	采用宽输入电压范围、280mA LDO 稳压器的汽车类 3.6V 至 36V 3.2A 降
TPS65321AQPWPRQ1	TI	获取价格	采用宽输入电压范围、280mA LDO 稳压器的汽车类 3.6V 至 36V 3.2A 降
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TPS65381AQDAPTQ1	TI	获取价格	适用于安全应用中的微控制器的多轨电源 (PMIC) \| DAP \| 32 \| -40 to

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